Is this just for the specified networks?
Or is it all Wi-Fi calling? My guess is that it's the latter, but they only tried those networks. That would mean that the networks offering Wi-Fi calling in the UK are also vulnerable. OTOH the attacks looked a bit generic: if you can spoof ARP on a Wi-Fi network then I don't think intercepting Wi-Fi calls is the only thing you can do, by a long way.
Biting the hand that feeds IT
